power surge blew fuse in stereo

[[email protected]]

Hi, a power surge blew a fuse (2A/250V) in my shelf stereo system (JVC
MX-J10). I replaced it, but as soon as I plug in power, it blows out
immediately. Any ideas what could be causing this? Thanks in advance!

 

[[email protected]]

Hi, a power surge blew a fuse (2A/250V) in my shelf stereo system (JVC
MX-J10). I replaced it, but as soon as I plug in power, it blows out
immediately. Any ideas what could be causing this? Thanks in advance!

what makes you think it was a power surge?

PSU problem. Is it transformer or smpsu?


NT

 

[Bob]

Hi, a power surge blew a fuse (2A/250V) in my shelf stereo system (JVC
MX-J10). I replaced it, but as soon as I plug in power, it blows out
immediately. Any ideas what could be causing this? Thanks in advance!

Probably have a failure in either the power supply or the power
amplifier. It could be a big deal.

Bob

 

[James Sweet]

Hi, a power surge blew a fuse (2A/250V) in my shelf stereo system (JVC
MX-J10). I replaced it, but as soon as I plug in power, it blows out
immediately. Any ideas what could be causing this? Thanks in advance!

It may not have had anything to do with a surge. Obviously one or more
components are shorted, it shouldn't be too hard for an experienced tech
to fix but if you have some experience troubleshooting electronics, a
multimeter and soldering equipment, there's nothing you can do that
won't make it worse and more costly to have repaired.

 

[Michael Kennedy]

there's nothing you can do that won't make it worse and more costly to have

repaired.

LOL! Is this a typo or are you saying if he does anything it will make it
more expensive to repair. Thats proably true, but funny.

 

[James Sweet]

LOL! Is this a typo or are you saying if he does anything it will make it
more expensive to repair. Thats proably true, but funny.

Yes, if he does anything while not knowing what he's doing, it's very
likely to do nothing but damage it further. I've seen it more times than
I can count.

 

[Michael Kennedy]

I thought it was funny because you said if he had expirence troubleshooting
he could only make it worse.

 

[JANA]

The most common cause is a failure in the output stage. The failure is
usually the power output devices, their respective drivers, and sometimes
their support components.

--

JANA
_____


Hi, a power surge blew a fuse (2A/250V) in my shelf stereo system (JVC
MX-J10). I replaced it, but as soon as I plug in power, it blows out
immediately. Any ideas what could be causing this? Thanks in advance!

 

[Arfa Daily]

Hi, a power surge blew a fuse (2A/250V) in my shelf stereo system (JVC
MX-J10). I replaced it, but as soon as I plug in power, it blows out
immediately. Any ideas what could be causing this? Thanks in advance!

Is this the line power input fuse ? In what way does it blow - with a soft
blue flash or violently with a bright white flash and total vapourisation of
the fuse wire ( inside of glass blackened ) ?

Are you replacing with the correct fuse type - almost certainly " T " rated
?

I see many HiFi's with a blown fuse after some kind of power surge - often
due to power interuptions when there's storms about, and I actually find it
quite rare on modern equipment for there to be any issue other than the
fuse. That's not to say, of course, that surges are nothing to do with your
problem, and it has plain and simple just gone wrong.

Arfa